diff --git a/requirements.txt b/requirements.txt
index 8306c6887b31449bca149b01cd041c350c7771ae..67dd489b259c8035ee53d6735a45e205728a90df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ scipy==1.9.2
 setuptools==65.6.3
 pandas==1.5.3
 julian==0.14
-astropy==5.1
+astropy==6.0.0
 tqdm==4.64.1
 galsim==2.4.9